Stone-dressing machine.



No. 846,808. v PATENTED MAR. 12, 1907. A W. H. VAN SIOKEL.

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PATENTED MAR. 12,1907.

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No. 846,808. PATENTED MAR. 12, 1907.

' W H VAN SIGKEL STONE DRESSING MACHINE. APPLICATION FILED SEPT. 30,1905.

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UTTE STARS PATENT OFFICE.

WILBER H. VAN SIOKEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGN OR TO THOS. H. DALLETT 00., A CORPORATION OF NEW JERSEY.

STONE-DRESSING MACHINE.

Specification of Letters Patent.

Patented March 12, 1907.

Application filed September 30, 1905. Serial No. 280.738.

To all whom, it may concern.-

Be it known that I, WILBER I-I. VAN SIoKEL, a citizen of the United States, residing at Philadelphia, county of Philadelphia, and State of Pennsylvania, have invented a new and useful Improvement in Stone-Dressing Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

. My invention has for its object the production of a stone-dressing machine which will be convenient to use and simple in construction, enabling the tool to be readily taken apart for examination or repairs.

I will first describe the embodiment of my invention illustrated in the accompanying drawings and then point out the invention in the claims.

In the drawings, Figure l is a side elevation of the machine, partly in section. Fig. 2 is a vertical sectional view through the carrying-frame. Fig. 3 is a vertical view on the line 3 3, Fig. 2. Fig. 4 is a sectional plan view on the line 4 4, Fig. 2. Fig. 5 is a vertical sectional view through the tool-oylinder. Fig. 6 is a plan view of this portion of the machine. Fig. 7 is a sectional plan view through the tool-cylinder, showing the holding-bracket.

a is the base of the machine, supported upon wheels I), so that it is movable to the desired positions. 0 is a hollow round projection from this base a, in which rests the enlarged end e of the bifurcated standard f. This end 6 rests loosely in the projection c, which may be filled with oil or other lubricant to enable the standard to be readily turned. In order to prevent the standard rising vertically, in the enlarged end e is an annular groove g, in which a set-screw h projects. i is a frame carrying the drum j, hand-wheel 7c, and ratchet Z with its pawl m. A cord or chain has one end connected to the hook n at the top of the standard f. The other end is secured to the drum By turning the hand wheel is the cord is wound upon the drum, elevating the frame i. This frame 'i carries the rollers 0 0, which travel against the standard f. These rollers are diagonally on opposite sides of the standard, and at opposite sides of the standard f, diagonally with respect to each other, are respectively the block 19 and the spring 9, controlled by the set-screw r. The frame is held from moving downward by the ratchet and pawl before described. To cause the frame to descend, the pawl is released and either by the weight of the frame or by turning the hand-wheel the frame descends. sis a horizontal arm or slide, which passes or extends between the bifurcations of the standard f, resting between the rollers 25, carried by the frame 9;. The arm thus supported is enabled to be moved longitudinally, and its support, due to passing through the center line of upright, is such that there is no torsional strain when the tool, supported at its outer end, is in action. Moreover, it has a broad or long bearing-support. The spring g gives to the arm a flexibility of movement enabling the tool to be readily moved over the uneven surfaces of the stone. It alsocoinpensates for any lost motion. ries the tool-holding bracket a. The hammer-barrel v, in which at the lower end is the tool-bushin is secured by pressure in the valve-box s leeve 90, which valve-box sleeve rests upon the bracket u and is secured thereto between the nuts 11 and heads 12 on rods 10. w is the cutting-tool.

The operative parts of the tool are assembled as follows: The hammer y is loose in the hammer-barrel r. The valve-box z is within the valve-box sleeve 00, resting on the top of the hammer-barrel. The cap -1, having the orifice 2, rests on the top of the valve-box 2. The top of the cap 1 is rounded, as shown, and on it rests the rounded or curved cutaway portion 3 in the under side of the yoke 4, the yoke having also an orifice 5 through. it. Through these orifices 2 and 5 extends the air-inlet pipe 6, leading to the source of air-pressure, the inlet of which air is controlled by a cock 7.. The yoke is secured in position by the rods which pass through orifices in the yoke and the tool-holding bracket, and the yoke is forced against the cap by the nuts 8. To disassemble the parts, all that is necessary is to release the nuts and remove the yoke, when the cap can be removed, which will then open the interior of the valvebox sleeve and hammer-barrel, so that the valve-box and hammer may readily be removed for inspection or replacement. Moreover, by this construction when the parts are The arm 8 at its outer end carassembled they are rigid and the connections are air-tight.

Having now fully described my invention, what I claim, and desire to protect by Letters Patent, is

1. In a stone-dressing machine, in combination, a bifurcated rotatable standard, a frame vertically movable upon the exterior of said standard, rollers carried by said frame in line with the space between the bifurcation of said standard, an arm extending loosely through said bifurcation, resting up on said rollers, and extending beyond said frame and standard, said arm being adapted to support the operating-tool.

2. In a stone-dressing machine, in combination, a bifurcated rotatable standard, a frame consisting of two plates, connected together, vertically movable upon the exterior of the bifurcated standard, rollers between said plates, an arm, adapted to support the operating-tool, extending loosely through the bifurcation, resting upon said rollers and extending beyond said standard and frame.

3. In a stone-dressing machine, in combination, a tool-carrying arm, a tool-holding bracket carried thereby, a hammer-barrel and valve-box sleeve secured to said bracket, a hammer adapted to be loosely inserted in the hammer-barrel and a loose valve-box adapted to be inserted in the valve-b ox sleeve, and means independent of the valve-box,

' hammer-barrel and bracket-securing means to hold the valve-box in fixed and air-tight position whereby the valve may be disconnected and removed without severing connection between the hammerbarrel and valvebox sleeve and bracket.

4. In a stone-dressing machine, in combination, a tool-carrying arm, a tool-holding bracket carried thereby, a hammer-barre and valve-box sleeve secured to said bracket, a hammer adapted to be loosely inserted. in the hammer-barrel and a loose valve-box adapted to be inserted in the valve-box sleeve, a cap having an orifice adapted to be inserted above said valve-box, and means independent of the valve-box, hammer-barrel and bracket-securing means to clamp the cap against the valve-box whereby the valve may be disconnected and removed without severing connection between the hammerbarrel and valve-box sleeve and bracket.

5. In a stone-dressing machine, in combination, a tool-carrying arm, a tool-holding bracket carried thereby, a hammer-barrel and valve-box sleeve secured to said bracket,

' a hammer adapted to be loosely inserted in the hammer-barrel and a loose valve-box adapted to be inserted in the. valve-box sleeve, a cap having an orifice adapted to be inserted above said valve-box, and a yoke resting upon. said cap and means independent of the valve-box, hammer-barrel and bracket securing means to force the yoke against the cap whereby the valve may be disconnected and removed without severing connection between the hammer-barrel and valve-box sleeve and bracket.

6. In a stone-dressing machine, in combi nation, a tool-carrying arm, a tool-holding bracket carried thereby, a hammer-barrel and valve-box sleeve secured to said bracket, a hammer adapted to be loosely inserted in the hammer-barrel and a loose valve-box adapted to be inserted in the valve-box sleeve, a cap having an orifice adapted to be inserted above said valve-box, and an orificed yoke resting upon said cap and means independent of the valve-box, hammer-barrel and bracket-securing means to force the yoke against the cap whereby the valve may be disconnected and removed without severing connection between the hammer-barrel and valve-box sleeve and bracket.

7. In a stone-dressing machine, in combination, a tool-carrying arm, a tool-holding bracket carried thereby, a hammer-barrel and valve-sleeve secured to said bracket, a hammer adapted to be loosely inserted in the hammer-barrel and a loose valve-box adapted to be inserted in the valve-box sleeve, a cap having an orifice adapted to be inserted above said valve-box, and ayoke resting upon said cap and means independent of the valvebox, hammer-barrel and bracket-securing means to force the yoke against the "cap whereby the valve may be disconnected and removed without severing connection between the hammer-barrel and valve-box sleeve and bracket.

8. In a stone-dressing machine, in combination, a tool-carrying arm, a tool-holdin bracket carried thereby, a hammer-barre and valve-sleeve secured thereto, a hammer adapted to be loosely inserted in the hammer-barrel and a loose valve-box adapted to be inserted in the valve-box sleeve, a cap having an orifice adapted to be inserted above said valve-box, and an orificed yoke resting upon said cap and means to force the yoke against the cap, the top of the cap having an upwardly-extending curved surface and the lower face of the yoke a corresponding inset.

9. In a stone-dressing machine, in combination, two members, one an upright, the

,other a frame vertically movable upon said upright, a spring carried by one member and exerting a pressure against the other memher, and a tool-carrying arm supported by said frame.

10. In a stonedressing' machine, in combination, two members, one an upright, the other a frame vertically movable upon said upright, and having a bearing point or points upon said upright and a spring carried by one member and exerting a pressure against the other member, and a tool-carrying arm sup ported by said frame.

11. In a stone-dressing machine in combi- I spring-cushioned whereby the arm has a flexination, tWo members, one an upright, the ble movement. other a frame vertically movable upon said In testimony of which invention I have upright, a tool-carrying arm supported by hereunto set my l1and,'at Philadelphia, on 5' said frame and a spring carried by said frame this 18th day of September, 1905.

and 6X6ltil1 a pressure a 'ainst the member. 1 T

12 In asfione-dressinginaohine, in oombil VVILBER VAB SIOKEL' nation, an upright, a frame vertically mov- WVitnesses:

able upon said upright, a tool-carrying arm M. M. HAMILTON,

IO supported by said frame, said frame being 1 J. B. WOOD. 

